CN102384702A

CN102384702A - Method for intercepting aircrafts without collateral damage in unmanned way

Info

Publication number: CN102384702A
Application number: CN2010102658239A
Authority: CN
Inventors: 冯顺山; 都基焱; 董永香; 黄广炎; 邵志宇; 冯源; 王国成
Original assignee: Beijing Institute of Technology BIT
Current assignee: Beijing Institute of Technology BIT
Priority date: 2010-08-30
Filing date: 2010-08-30
Publication date: 2012-03-21

Abstract

The invention discloses a method for intercepting an aircraft by using an unmanned aerial vehicle to throw a fiber tow curtain without incidental damage. The design scheme of this method mainly includes five steps: determining the design width and height of the fiber tow curtain in the unfolded state, correcting the design width, determining the intersecting conditions between the fiber tow curtain and the aircraft, and throwing the fiber tow by the UAV. Conditions need to measure the relative height between the UAV and the aircraft in the vertical direction, the relative distance in the direction of the route, and the lateral error in the vertical direction of the route. The fiber tow curtain can also strengthen the interception effect on the aircraft by mounting various objects. In addition, in order to improve the reliability of interception, multiple UAVs can be used to form multiple fiber tow curtains in the air at the same time to intercept the aircraft. The invention intercepts the aircraft in a soft killing manner, has a high hit rate, is convenient for use and maintenance of the interception equipment, has no incidental damage during the interception process, and has no pollution and safety threats to the environment. The interception system using this method has a low complexity and is suitable for mass equipment.

Description

Methods for Unmanned Interception of Air Vehicles Without Collateral Damage

技术领域 technical field

本发明涉及一种无附带损伤的无人拦截飞行器方法，特别涉及一种无人机抛撒纤维丝束幕拦截飞行器的方法，属于城市空中安保领域。The invention relates to a method for unmanned interception of an aircraft without incidental damage, in particular to a method for an unmanned aerial vehicle to intercept an aircraft by throwing a fiber tow curtain, and belongs to the field of urban air security.

背景技术 Background technique

在某些大型运动会、会议等重要场合，或者在战争情况下，为了防止敌对势力或敌方采用无人机、巡航导弹等飞行器对开会场馆或重要事件发生场地实施破坏，需要对来袭的飞行器进行拦截。对飞行器的拦截可采用直接击中飞行器的硬杀伤方式，如用导弹、炮弹等对飞行器进行精确打击，但该方法命中率较低，且攻击完成后产生的大量破片容易误伤无关人员，对周围环境的安全性构成重大威胁。如果采用激光武器或无线电干扰武器拦截飞行器，一方面整个拦截系统非常复杂、庞大，造价昂贵，使用及维护困难，另一方面这样的系统易遭受外来干扰及侵害，可靠性较低，且这些系统如果被敌对势力或敌方利用，会对已方造成意想不到的重大伤害。另外，无线电干扰武器能够对环境造成严重的电磁污染。此外，还有一些利用化学药品之间的化学反应对飞行器相关部位进行毁伤来拦截飞行器的方法，但这些方法同样会污染环境，威胁到周围环境的安全。针对上述问题，本发明提出了一种无附带损伤的利用无人机抛撒纤维丝束幕拦截飞行器的方法，该方法通过软杀伤方式有效地拦截飞行器，且不会对周围环境产生有害影响。目前国内外未见到使用无人机抛撒纤维丝束幕拦截飞行器的方法。In some important occasions such as large-scale sports games, conferences, or in the case of war, in order to prevent hostile forces or the enemy from using drones, cruise missiles and other aircraft to destroy meeting venues or important event venues, it is necessary to detect incoming aircraft to intercept. The interception of the aircraft can adopt the hard killing method of directly hitting the aircraft, such as precise strikes on the aircraft with missiles and artillery shells, but the hit rate of this method is low, and a large number of fragments generated after the attack is completed are likely to accidentally injure irrelevant personnel, causing damage to the surrounding area. The security of the environment poses a significant threat. If laser weapons or radio interference weapons are used to intercept aircraft, on the one hand, the entire interception system is very complex, huge, expensive, and difficult to use and maintain; If it is used by hostile forces or the enemy, it will cause unexpected and significant damage to the party. In addition, radio jamming weapons can cause serious electromagnetic pollution to the environment. In addition, there are some methods of intercepting the aircraft by destroying relevant parts of the aircraft by using chemical reactions between chemicals, but these methods also pollute the environment and threaten the safety of the surrounding environment. In view of the above problems, the present invention proposes a method of intercepting aircraft by using unmanned aerial vehicle to throw fiber tow curtain without incidental damage. This method effectively intercepts aircraft through soft killing method, and will not have harmful effects on the surrounding environment. At present, there is no method of using unmanned aerial vehicle to throw fiber tow curtain to intercept aircraft at home and abroad.

发明内容 Contents of the invention

本发明的目的是通过无人机抛撒纤维丝束幕拦截飞行器的方法有效拦截飞行器。该方法命中率高，拦截系统简单，抗外来干扰能力强，且拦截过程对环境无附带损伤，还能够有效防止拦截系统被敌对势力或敌方控制时产生危害。The purpose of the present invention is to effectively intercept the aircraft through the method of intercepting the aircraft by the unmanned aerial vehicle throwing fiber tow curtain. This method has a high hit rate, simple interception system, strong anti-interference ability, and no incidental damage to the environment during the interception process, and can effectively prevent the interception system from being harmed by hostile forces or enemy control.

为了完成对飞行器的拦截，本发明的技术方案如下：In order to complete the interception of aircraft, the technical scheme of the present invention is as follows:

构成拦截系统的主要装置或设备：①拦截无人机平台，由无人机、测控与信息传输设备、任务设备和综合保障四个分系统组成，能够根据地面侦查系统和控制终端提供的目标信息，将纤维丝束抛撒装置运送至适当位置，适时抛撒纤维丝束；②纤维丝束抛撒装置，挂载于无人机上，能够根据抛撒指令将纤维丝束抛撒出去，在空中形成符合要求的纤维丝束幕。The main devices or equipment that constitute the interception system: ①The interception UAV platform is composed of four subsystems: UAV, measurement and control and information transmission equipment, mission equipment and comprehensive support. , transport the fiber tow throwing device to an appropriate location, and throw the fiber tow at the right time; ②The fiber tow throwing device, mounted on the UAV, can throw the fiber tow out according to the throwing command, and form the fiber tow that meets the requirements in the air tow curtain.

实现无人机抛撒纤维丝束幕拦截飞行器方法的前提条件为：实施拦截之前，无人机已将纤维丝束抛撒装置运送至飞行器航路的上方，且在发射纤维丝束的瞬间，无人机航路与飞行器的航路平行，或无人机速度为零。The prerequisite for realizing the method of UAV throwing fiber tow curtain to intercept the aircraft is: before the interception, the UAV has transported the fiber tow throwing device to the top of the flight path of the aircraft, and at the moment of launching the fiber tow, the UAV The flight path is parallel to the flight path of the aircraft, or the drone speed is zero.

根据上述拦截系统的前提条件，本发明的设计方案如下：According to the preconditions of the above-mentioned interception system, the design scheme of the present invention is as follows:

(1)确定纤维丝束幕在展开状态下的宽度；(1) Determine the width of the fiber tow curtain in the unfolded state;

根据所要拦截的飞行器的宽度尺寸w_o初步确定纤维丝束幕的设计宽度w′：Preliminarily determine the design width w′ of the fiber tow curtain according to the width dimension w _o of the aircraft to be intercepted:

w′＝μ_ow_o w'＝μ _o w _o

(1) (1)

式中μ_o表示宽度放大系数，根据飞行器的实际情况取值。对于拦截翼展小于2.5m的无人机飞行器，μ_o可取10～30之间的值。In the formula, μ _o represents the width magnification factor, and the value is taken according to the actual situation of the aircraft. For UAVs with intercepting wingspan less than 2.5m, μ _o can take a value between 10 and 30.

(2)根据已确定的纤维丝束幕宽度决定在展开状态下的高度；(2) Determine the height in the unfolded state according to the determined fiber tow curtain width;

假定纤维丝束从抛撒装置中抛撒出来后，在竖直方向上纤维丝束上端始终以速度v_d下落，且该速度不受风速影响，则丝束幕的设计高度h由下式确定：Assuming that after the fiber tow is thrown out from the throwing device, the upper end of the fiber tow always falls at a speed v _d in the vertical direction, and this speed is not affected by the wind speed, then the design height h of the tow curtain is determined by the following formula:

$h h = = \frac{{w w}^{' '} {v v}_{d d}}{22 {μ μ}_{w w} {v v}_{w w}} ((11 + + \frac{{μ μ}_{w w} {v v}_{w w}}{{v v}_{t t} - - {μ μ}_{w w} {v v}_{w w}})) - - - - - - ((22))$

式中v_d表示纤维丝束幕的平衡落速，可根据需要进行适当设计，通过计算或实验确定。v_w表示丝束幕设计过程中预先确定的最大可承受风速，在设计丝束幕之前需要给出这一数值。μ_w表示风速对纤维丝束幕在水平方向运动的影响系数，取0到1之间的数，需在丝束幕设计过程中通过计算或实验确定。v_t表示飞行器的运动速度。In the formula, v _d represents the equilibrium falling speed of the fiber tow curtain, which can be properly designed according to the needs and determined by calculation or experiment. v _w represents the predetermined maximum wind speed during the design process of the tow curtain, which needs to be given before designing the tow curtain. μ _w represents the influence coefficient of wind speed on the movement of the fiber tow curtain in the horizontal direction, which is a number between 0 and 1 and needs to be determined by calculation or experiment during the design process of the tow curtain. v _t represents the velocity of the aircraft.

(3)根据纤维丝束幕的设计高度修正设计宽度；(3) Modify the design width according to the design height of the fiber tow curtain;

根据风速的影响对式(1)所示的纤维丝束宽度进行修正：According to the influence of wind speed, the fiber tow width shown in formula (1) is corrected:

$w w = = {w w}^{' '} ((11 + + \frac{{μ μ}_{w w} {v v}_{w w}}{{v v}_{t t} - - {μ μ}_{w w} {v v}_{w w}})) - - - - - - ((33))$

w即为纤维丝束幕的设计宽度。w is the design width of the fiber tow curtain.

(4)确定纤维丝束幕与飞行器的交会条件；(4) Determine the intersecting conditions between the fiber tow curtain and the aircraft;

由于拦截时要求无人机位于飞行器航道的上方，因此确定交会条件就是确定在抛撒纤维丝束的瞬间，在竖直方向上无人机与飞行器之间的相对高度H以及在航路方向上的相对距离D之间应该满足的关系。这两个参数的大小需通过无人机平台的测控设备给出。此外，需要确定在抛撒瞬间，允许无人机偏离飞行器航路的最大横向误差。Since the UAV is required to be above the flight path of the aircraft during interception, the determination of the intersection condition is to determine the relative height H between the UAV and the aircraft in the vertical direction and the relative height H between the UAV and the aircraft in the direction of the flight path at the moment of throwing the fiber tow. The relationship that should be satisfied between the distances D. The size of these two parameters needs to be given by the measurement and control equipment of the UAV platform. In addition, it is necessary to determine the maximum lateral error that allows the UAV to deviate from the flight path of the aircraft at the moment of throwing.

在纤维丝束相对纤维丝束抛撒装置没有竖直向下的抛撒初速的条件下，抛撒相对高度H需满足以下关系式：Under the condition that the fiber tow does not have a vertically downward throwing initial velocity relative to the fiber tow throwing device, the relative throwing height H needs to satisfy the following relationship:

H≤h (4)H≤h (4)

式中相对高度H表示在竖直方向上无人机高出被拦截飞行器的距离。当测量设备检测出相对高度H满足上式后，无人机与飞行器之间在航路方向上的相对距离D需满足下式：In the formula, the relative height H represents the distance that the UAV is higher than the intercepted aircraft in the vertical direction. When the measuring equipment detects that the relative height H satisfies the above formula, the relative distance D between the UAV and the aircraft in the direction of the route needs to satisfy the following formula:

$D D. \leq \leq \frac{{v v}_{t t}}{{v v}_{d d}} H h + + {μ μ}_{b b} {v v}_{b b} {t t}_{00} - - - - - - ((55))$

v_b表示无人机在抛撒瞬间的速度，方向平行于航路，无人机与飞行器相向飞行时取正值，同向飞行时取负值。μ_b表示对速度取平均值的加权系数，取0到1之间的数，需在丝束幕设计过程中通过计算或实验确定。t₀表示速度v_b衰减到最大可承受风速v_w的时间，需在丝束幕设计过程中通过计算或实验确定。v _b represents the speed of the UAV at the moment of throwing, and the direction is parallel to the flight path. It takes a positive value when the UAV and the aircraft fly in the same direction, and takes a negative value when they fly in the same direction. μ _b represents the weighting coefficient for taking the average value of the speed, which is a number between 0 and 1, and needs to be determined by calculation or experiment in the process of designing the tow screen. t ₀ represents the time for the velocity v _b to decay to the maximum tolerable wind speed v _w , which needs to be determined by calculation or experiment in the process of tow curtain design.

在抛撒纤维丝束的瞬间，在实现交会条件下允许的无人机偏离飞行器航路的最大横向误差E_max由下式确定：At the moment when the fiber tow is thrown, the maximum lateral error _Emax that allows the UAV to deviate from the flight path of the aircraft under the condition of rendezvous is determined by the following formula:

${E E.}_{max max} = = \frac{w w}{22} ((22 - - \frac{{v v}_{wv wv}}{{v v}_{w w}} - - \frac{D D.}{\frac{{v v}_{t t}}{{v v}_{d d}} H h + + {μ μ}_{b b} {v v}_{b b} {t t}_{00}})) - - - - - - ((66))$

偏差E_max表示在抛撒瞬间，无人机与飞行器之间在与航路垂直的水平方向上所允许的最大偏差。v_wv表示纤维丝束抛撒后影响纤维丝束幕运动的实际平均风速。通过无人机平台的测量设备测量得到的无人机偏离飞行器航路的实际横向误差E应满足下式：The deviation E _max indicates the maximum allowable deviation between the UAV and the aircraft in the horizontal direction perpendicular to the flight path at the moment of throwing. v _wv represents the actual average wind speed that affects the movement of the fiber tow curtain after the fiber tow is thrown. The actual lateral error E of the UAV deviating from the aircraft route measured by the measuring equipment of the UAV platform should satisfy the following formula:

E≤E_max _E≤Emax

(7)(7)

(5)根据前四步的纤维丝束幕及交会条件，无人机上挂载的纤维丝束抛撒装置抛撒纤维丝束幕，实施拦截。(5) According to the fiber tow curtain and intersection conditions in the first four steps, the fiber tow throwing device mounted on the UAV throws the fiber tow curtain and intercepts it.

至此，可实现无人机抛撒纤维丝束幕在空中对飞行器的有效拦截。So far, the effective interception of the aircraft in the air by the fiber tow curtain thrown by the UAV can be realized.

纤维丝束幕还能通过挂载各种作用物，如锚钩、炸药、阻力伞等，加强对飞行器的拦截作用。The fiber tow curtain can also strengthen the interception effect on the aircraft by mounting various objects, such as anchor hooks, explosives, drag parachutes, etc.

对飞行器进行拦截时，为了增强拦截效果，应用多架无人机及多个纤维丝束抛撒装置，同时在空中形成多个纤维丝束幕，各纤维丝束幕之间按照一定的方式排列，从而扩大纤维丝束幕的作用范围，提高拦截的可靠性。When intercepting aircraft, in order to enhance the interception effect, multiple drones and multiple fiber tow throwing devices are used to form multiple fiber tow curtains in the air at the same time, and the fiber tow curtains are arranged in a certain way. Thereby expanding the scope of action of the fiber tow curtain and improving the reliability of interception.

有益效果：Beneficial effect:

使用无人机抛撒纤维丝束幕对飞行器进行拦截的拦截系统复杂程度较低，因而成本较低，适合大批量装备。该方法以软杀伤方式拦截飞行器，命中率高(尤其是运用多个纤维丝束幕进行组合时)，拦截设备的使用及维护方便，无附带损伤，对环境没有污染且不构成安全威胁。The interception system using unmanned aerial vehicles to throw fiber tow curtains to intercept aircraft is less complex, so the cost is lower, and it is suitable for large-scale equipment. The method intercepts the aircraft in a soft killing manner, has a high hit rate (especially when multiple fiber tow curtains are used for combination), the interception equipment is convenient to use and maintain, has no incidental damage, does not pollute the environment, and does not constitute a security threat.

附图说明 Description of drawings

图1是本发明涉及无附带损伤的无人拦截飞行器方法的流程图Fig. 1 is a flow chart of the present invention relating to the method for unmanned interception of aircraft without collateral damage

具体实施方式 Detailed ways

现结合附图说明和实施例对发明进行进一步具体说明。The invention will now be further specifically described in conjunction with the description of the drawings and the embodiments.

实施例1：无人机与飞行器相向飞行实施拦截，通过丝束幕中的丝束与螺旋桨轴的摩擦力使螺旋桨停转，实施对无人机的拦截。Embodiment 1: The unmanned aerial vehicle and the aircraft fly opposite to implement interception, and the friction force between the tow in the tow curtain and the propeller shaft makes the propeller stop, and intercepts the unmanned aerial vehicle.

已知条件为：被拦截的飞行器翼展w_o＝2m，速度v_t＝50m/s；无人机速度v_b＝20m/s；纤维丝束幕能承受的最大风速v_w＝10m/s，纤维丝束抛撒装置抛撒丝束后的平均风速v_wv＝5m/s。则该纤维丝束幕的具体设计流程为：The known conditions are: the wingspan of the intercepted aircraft w _o = 2m, the speed v _t = 50m/s; the speed of the UAV v _b = 20m/s; the maximum wind speed that the fiber tow curtain can withstand v _w = 10m/s , the average wind speed v _wv =5m/s after the fiber tow throwing device throws the tow. The specific design process of the fiber tow curtain is as follows:

(1)取μ_o＝20，根据式(1)初步确定纤维丝束幕的宽度w′为(单位：米)：(1) Take μ _o =20, and initially determine the width w' of the fiber tow curtain according to formula (1) as (unit: meter):

w′＝μ_ow_o＝20×2＝40w'=μ _o w _o =20×2=40

(2)取v_d＝5m/s，μ_w＝0.5，根据式(2)确定丝束幕的设计高度h为(单位：米)：(2) Get v _d =5m/s, μ _w =0.5, determine the design height h of the tow curtain according to formula (2) as (unit: meter):

$h h = = \frac{{w w}^{' '} {v v}_{d d}}{22 {μ μ}_{w w} {v v}_{w w}} ((11 + + \frac{{μ μ}_{w w} {v v}_{w w}}{{v v}_{t t} - - {μ μ}_{w w} {v v}_{w w}})) = = \frac{4040 \times \times 55}{22 \times \times 0.5 0.5 \times \times 1010} ((11 + + \frac{0.5 0.5 \times \times 1010}{5050 - - 0.5 0.5 \times \times 1010})) \approx \approx 23 twenty three$

(3)根据(3)式对纤维丝束幕的设计宽度w′进行修正：(3) Correct the design width w' of the fiber tow curtain according to formula (3):

$w w = = {w w}^{' '} ((11 + + \frac{{μ μ}_{w w} {v v}_{w w}}{{v v}_{t t} - - {μ μ}_{w w} {v v}_{w w}})) = = 4040 \times \times ((11 + + \frac{0.5 0.5 \times \times 1010}{5050 - - 0.5 0.5 \times \times 1010})) \approx \approx 4545$

修正后纤维丝束幕的设计宽度w约为45米。The design width w of the fiber tow curtain after correction is about 45 meters.

(4)确定纤维丝束幕与飞行器的交会条件：(4) Determine the intersecting conditions between the fiber tow curtain and the aircraft:

根据(4)式，抛撒相对高度H满足(单位：米)：According to formula (4), the relative height H of throwing satisfies (unit: meter):

H≤h＝23H≤h=23

当测量设备检测到抛撒相对高度H的具体值满足上式时，如H＝15m，则需要进一步检测无人机与被拦截飞行器之间在航路方向上的相对距离D。根据实验数据，取μ_b＝0.5，t₀＝2s，则由(5)式相对距离D(单位：米)需满足：When the measurement equipment detects that the specific value of the relative height H of the throwing satisfies the above formula, such as H=15m, it is necessary to further detect the relative distance D between the UAV and the intercepted aircraft in the direction of the route. According to the experimental data, take μ _b = 0.5, t ₀ = 2s, then the relative distance D (unit: meter) from the formula (5) needs to satisfy:

$D D. \leq \leq \frac{{v v}_{t t}}{{v v}_{d d}} H h + + {μ μ}_{b b} {v v}_{b b} {t t}_{00} = = 5050 \times \times \frac{1515}{55} + + 0.5 0.5 \times \times 2020 \times \times 22 = = 170170$

在抛撒相对高度H满足要求的条件下，当检测到D满足上式时，无人机启动纤维丝束抛撒装置抛撒纤维丝束，实现纤维丝束幕与飞行器的交会，达到拦截目的。Under the condition that the relative throwing height H meets the requirements, when it is detected that D satisfies the above formula, the UAV starts the fiber tow throwing device to throw the fiber tow, and realizes the intersection of the fiber tow curtain and the aircraft to achieve the purpose of interception.

假设当H＝15m，D＝150m时进行抛撒，则在抛撒瞬间，无人机与飞行器之间在与航路垂直的水平方向上允许的最大偏差E_max为：Assuming that the throwing is carried out when H=15m and D=150m, then at the moment of throwing, the maximum deviation E _max allowed between the UAV and the aircraft in the horizontal direction perpendicular to the flight path is:

${E E.}_{max max} = = \frac{w w}{22} ((22 - - \frac{{v v}_{wv wv}}{{v v}_{w w}} - - \frac{D D.}{\frac{{v v}_{t t}}{{v v}_{d d}} H h + + {μ μ}_{b b} {v v}_{b b} {t t}_{00}})) = = \frac{4545}{22} ((22 - - \frac{55}{1010} - - \frac{150150}{170170})) \approx \approx 1313$

即在抛撒瞬间允许无人机偏离飞行器航路的最大横向距离误差约为13米，此时仍能实现纤维丝束幕与被拦截飞行器的交会。That is, the maximum lateral distance error that allows the UAV to deviate from the aircraft's route at the moment of throwing is about 13 meters. At this time, the rendezvous between the fiber tow curtain and the intercepted aircraft can still be achieved.

(5)根据前四步的纤维丝束幕及交会条件，无人机控制纤维丝束抛撒装置抛撒纤维丝束幕，实施拦截。(5) According to the fiber tow curtain and intersection conditions in the first four steps, the UAV controls the fiber tow throwing device to throw the fiber tow curtain and intercept it.

(6)通过实际拦截实验修正纤维丝束幕的各相关设计，得到纤维丝束幕各设计情况如下：(6) Correct the related designs of the fiber tow curtain through the actual interception experiment, and obtain the design conditions of the fiber tow curtain as follows:

纤维丝束幕的设计宽度45米，设计高度25米；使用无人机进行拦截的交会条件为：最大风速不超过10m/s，当相向拦截时，无人机在飞行器上方距离小于23米处启动纤维丝束抛撒装置进行抛撒，此时无人机与飞行器在水平方向的距离需小于170米。当抛撒瞬间无人机与飞行器之间的相对距离约为150米、抛撒后的平均风速为5m/s时，允许无人机偏离飞行器航路的最大横向距离约为13米。The design width of the fiber tow curtain is 45 meters, and the design height is 25 meters; the intersection conditions for interception by drones are: the maximum wind speed does not exceed 10m/s, and when intercepting in opposite directions, the drone is at a distance of less than 23 meters above the aircraft Start the fiber tow throwing device for throwing. At this time, the distance between the UAV and the aircraft in the horizontal direction must be less than 170 meters. When the relative distance between the UAV and the aircraft at the moment of throwing is about 150 meters, and the average wind speed after throwing is 5m/s, the maximum lateral distance that allows the UAV to deviate from the aircraft route is about 13 meters.

实施例2：无人机与被拦截飞行器相向飞行实施拦截。在该拦截过程中，无人机抛撒的丝束幕作为载体，其上挂载特殊设计的具有延时引信的小型炸弹，通过炸弹爆炸产生的冲击波及破坏飞行器机体，实施对飞行器的拦截。丝束幕设计流程及拦截过程同实施例1。Embodiment 2: The unmanned aerial vehicle and the aircraft to be intercepted fly towards each other to implement interception. During the interception process, the tow curtain thrown by the UAV is used as a carrier, and a specially designed small bomb with a time-delay fuze is mounted on it. The shock wave generated by the bomb explosion and the destruction of the aircraft body are used to intercept the aircraft. The tow curtain design process and interception process are the same as in Embodiment 1.

实施例3：无人机与被拦截飞行器相向飞行实施拦截。在该拦截过程中，无人机抛撒的丝束幕作为载体，其上挂载阻力伞，通过阻力伞的不平衡阻力使飞行器的姿态发生剧烈变化，导致飞行器自动驾驶仪失灵，造成飞行器坠毁。丝束幕设计流程及拦截过程同实施例1。Embodiment 3: The unmanned aerial vehicle and the aircraft to be intercepted fly towards each other to implement interception. During the interception process, the tow curtain thrown by the UAV was used as a carrier, and the drag parachute was mounted on it. The unbalanced resistance of the drag parachute caused the attitude of the aircraft to change drastically, resulting in the failure of the autopilot of the aircraft and the crash of the aircraft. The tow curtain design process and interception process are the same as in Embodiment 1.

Claims

1. unmanned interception aircraft methods of not having collateral damage, it is characterized in that: this method has five steps:

The first step: confirm the width of fibre bundle curtain under deployed condition; Promptly according to the width dimensions w of the aircraft that will tackle _oThe preliminary design width w ' that confirms the fibre bundle curtain:

w′＝μ _ow _o

(1)

μ in the formula _oExpression width amplification coefficient is according to the actual conditions value of aircraft;

Second step: based on the height of fixed fibre bundle curtain width decision under deployed condition;

Suppose that fibre bundle is shed out from scattering mechanism after, in the vertical direction fibre bundle upper end is all the time with speed v _dFall, and this speed do not influence by wind speed, then the design height h of tow curtain is confirmed by following formula:

h = \frac{w^{'} v_{d}}{2 μ_{w} v_{w}} (1 + \frac{μ_{w} v_{w}}{v_{t} - μ_{w} v_{w}}) - - - (2)

V in the formula _dThe balance terminal-velocity of expression fibre bundle curtain is through calculating or testing and confirm; v _wPredetermined maximum can be born wind speed in the expression tow curtain design process; μ _wThe expression wind speed is got the number between 0 to 1 to fibre bundle curtain motional effects coefficient in the horizontal direction; v _tExpression is by the movement velocity of interception aircraft;

The 3rd step: according to the design height correction design width of fibre bundle curtain;

According to Influences on Wind Velocity the fibre bundle width shown in the formula (1) is revised:

w = w^{'} (1 + \frac{μ_{w} v_{w}}{v_{t} - μ_{w} v_{w}}) - - - (3)

W is the design width of fibre bundle curtain;

The 4th step: confirm fibre bundle curtain and the encounter conditions of being tackled aircraft;

Do not have to shed relative altitude H and need satisfy following relational expression under the condition of shedding initial velocity straight down at the relative fibre bundle scattering mechanism of fibre bundle:

H≤h (4)

Relative altitude H representes that the in the vertical direction unmanned plane exceeds by the distance of interception aircraft in the formula; When measurement device detects after relative altitude H satisfies following formula, the relative distance D between unmanned plane that records through measurement device and the aircraft on the direction of air route need satisfy following formula:

D \leq \frac{v_{t}}{v_{d}} H + μ_{b} v_{b} t_{0} - - - (5)

v _bThe expression unmanned plane shedding the speed of moment, direction is parallel to the air route, get when unmanned plane and aircraft fly in opposite directions on the occasion of, get negative value when flying in the same way; μ _bThe weight coefficient that expression is averaged to speed is got the number between 0 to 1; t ₀The expression speed v _bDecay to maximum and can bear wind speed v _wTime;

In the moment of shedding fibre bundle, realizing that the unmanned plane that allows under the encounter conditions departs from the maximum transversal error E in aircraft air route _MaxConfirm by following formula:

E_{\max} = \frac{w}{2} (2 - \frac{v_{wv}}{v_{w}} - \frac{D}{\frac{v_{t}}{v_{d}} H + μ_{b} v_{b} t_{0}}) - - - (6)

Deviation E _MaxBe illustrated in and shed moment, the maximum deviation that on the horizontal direction vertical, is allowed between unmanned plane and the aircraft with the air route; v _WvThe expression fibre bundle is shed the actual average wind speed that the back influences the motion of fibre bundle curtain; The actual lateral error E that the unmanned plane that measurement device through the unmanned plane platform measures departs from the aircraft air route should satisfy following formula:

E≤E _max

(7)

The 5th step: based on the fibre bundle curtain and the encounter conditions in preceding four steps, the fibre bundle scattering mechanism of carry is shed the fibre bundle curtain on the unmanned plane, implements interception.

2. a kind of unmanned interception aircraft methods of not having collateral damage according to claim 1 is characterized in that the device or the equipment that constitute intercepting system comprise: unmanned plane platform, fibre bundle scattering mechanism.

3. a kind of unmanned interception aircraft methods of not having collateral damage according to claim 1; It is characterized in that the precondition that realizes fibre bundle curtain interception aircraft methods is: implement before the interception; Unmanned plane is positioned at the top in aircraft air route; And in the moment of emission fibre bundle, the unmanned plane air route is parallel with the aircraft air route, or unmanned plane speed is zero.

4. a kind of unmanned interception aircraft methods of not having collateral damage according to claim 1, it is characterized in that: the fibre bundle curtain can the various agents of carry.

5. a kind of unmanned interception aircraft methods of not having collateral damage according to claim 1, it is characterized in that: many unmanned planes form a plurality of fibre bundle curtains aloft simultaneously, arrange according to the mode of setting between each fibre bundle curtain.